AEM 19-23 Mazda 3 2.5L COLD AIR INTAKE SYSTEM - 21-877C

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$349.99
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This Performance Air Intake System allows your engine to breathe more air compared to the restrictive factory air intake housing. It is designed, tuned and dyno-tested to produce more horsepower and torque. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air intake tube is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish. A custom shaped heat shield with lid is included. The tapered cylinder shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions). This Air Intake System is backed by AEM's Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the vehicle applications to determine the legal status for each vehicle.
  • Increased horsepower
  • Heat Shield with Lid.
  • Low restriction aluminum tubing
  • Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
  • Washable and reusable oil-free filter media
  • AEM Lifetime Limited Warranty

NOT CARB-APPROVED. ILLEGAL TO USE OR INSTALL IN CALIFORNIA. IF YOU LIVE IN CA, WE CANNOT SHIP YOU THIS ITEM AND YOU WILL BE CHARGED A 10% CANCELLATION FEE IF YOU ORDER. PLEASE LOOK FOR OTHER PRODUCTS WITH CARB APPROVAL.

Installation PDF

Installation Instruction Sheet

Dyno Chart - 2020 Mazda 3 2.5L - 8.97HP Increase


Estimated Horsepower Gain 8.97 HP @ 5209 RPM
Replacement Filter 21-203DK
Air Filter Color Red
Air Filter Material Non-woven Synthetic
Air Filter Outlet Shape Round
Clamps Included 3
Clamp Material Stainless Steel
Clamp Style Worm Gear
Couplers Included 1
Product Style AEM Cold Air Intake System
Intake Pipe Color / Finish Gunmetal Gray
Intake Pipe Material Aluminum
Street Legal In All US States No


Supported Vehicles

2023 Mazda 3 2.5L L4 Gas

Except Turbo

Street Legal in All US States: No

2022 Mazda 3 2.5L L4 Gas

Except Turbo

Street Legal in All US States: No

2021 Mazda 3 2.5L L4 Gas

Except Turbo

Street Legal in All US States: No

2020 Mazda 3 2.5L L4 Gas

All Models

Street Legal in All US States: No

2019 Mazda 3 2.5L L4 Gas

All Models

Street Legal in All US States: No

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